公开(公告)号：US5388115A

公开(公告)日：1995-02-07

申请号：US61555

申请日：1993-05-17

申请人： Hiroyuki Kawashima ,  Fumio Ohtomo ,  Susumu Saito ,  Isao Minegishi

发明人： Hiroyuki Kawashima ,  Fumio Ohtomo ,  Susumu Saito ,  Isao Minegishi

IPC分类号： G01B9/02 ,  H01S3/10 ,  G01C3/00

CPC分类号： G01B9/02007 ,  G01B9/02004 ,  G01B9/02014 ,  G01B9/02069 ,  G01B2290/60 ,  G01B2290/70

摘要： An absolute length measuring apparatus comprising light sources, a beam splitter, an object of measurement, a scanning mirror, a light receiver, sampling parts and a distance measuring part. The light sources emit alternately a plurality of coherent light beams having different wavelengths. The beam splitter splits the coherent light beam from the light sources into two optical paths. The object of measurement is located on one of the two optical paths stemming from the beam splitter. The scanning mirror is located on the other optical path stemming from the beam splitter and made movable in the direction of optical axis. The light receiver receives both the reflected light beam from the object of measurement and the reflected light beam from the scanning mirror through the beam splitter. The sampling parts generate sampling signals of various wavelengths by sampling the output of the light receiver every time the light sources emit a coherent light beam while scanned by the scanning mirror. The distance measuring part assumes a synthetic wavelength signal having a wavelength sufficiently greater than any individually generated wavelength based on the phase relations of the sampling signals, and measures the distance to the object of measurement in accordance with the synthetic wavelength signal.

摘要翻译： 一种包括光源，分束器，测量对象，扫描镜，光接收器，采样部件和距离测量部件的绝对长度测量装置。 光源交替发射具有不同波长的多个相干光束。 分束器将来自光源的相干光束分成两个光路。 测量对象位于源于分束器的两条光路之一上。 扫描镜位于从分束器引出的另一光路上，并使其沿光轴方向移动。 光接收器接收来自测量对象的反射光束和来自扫描镜的反射光束通过分束器。 采样部件通过在扫描反射镜扫描时每次光源发出相干光束时，对光接收器的输出进行采样，来产生各种波长的采样信号。 距离测量部分基于采样信号的相位关系假设具有足够大于任何单独生成的波长的波长的合成波长信号，并且根据合成波长信号测量到测量对象的距离。

公开(公告)号：US5535003A

公开(公告)日：1996-07-09

申请号：US413909

申请日：1995-03-30

申请人： Hiroyuki Kawashima ,  Fumio Ohtomo ,  Susumu Saito ,  Isao Minegishi

发明人： Hiroyuki Kawashima ,  Fumio Ohtomo ,  Susumu Saito ,  Isao Minegishi

IPC分类号： H01S5/068 ,  G01B9/02 ,  H01S3/13 ,  H01S5/0687

CPC分类号： H01S3/1303 ,  G01J9/0246 ,  H01S5/0687

摘要： A wavelength stabilizing light source apparatus comprising a light source, a beam splitter, a scanning mirror, a reflector, a first and a second light receiver, a phase detector and a wavelength stabilizer. The first light receiver receives a first interference signal formed from the interference between coherent light coming from the scanning mirror and coherent light reflected by the first reflecting surface. The second light receiver receives a second interference signal formed from the interference between the coherent light coming from the scanning mirror and the coherent light reflected by the second reflecting surface. The phase detector detects the difference in phase between the first and the second interference signal. The wavelength stabilizer stabilizes the wavelength of the light source by keeping constant the phase difference detected by the phase detector. The apparatus also includes an optical path length difference forming device for keeping a constant difference in length between the first optical path of its first member and the second optical path of its second member despite changes in temperature.

摘要翻译： 一种波长稳定光源装置，包括光源，分束器，扫描镜，反射器，第一和第二光接收器，相位检测器和波长稳定器。 第一光接收器接收由来自扫描反射镜的相干光和由第一反射表面反射的相干光之间的干涉形成的第一干涉信号。 第二光接收器接收由来自扫描反射镜的相干光与由第二反射面反射的相干光之间的干涉而形成的第二干涉信号。 相位检测器检测第一和第二干涉信号之间的相位差。 波长稳定器通过将相位检测器检测到的相位差保持恒定来稳定光源的波长。 该装置还包括光路长度差形成装置，尽管温度有变化，但仍保持其第一构件的第一光路与其第二构件的第二光路之间的长度上的恒定差。

公开(公告)号：US5453833A

公开(公告)日：1995-09-26

申请号：US61558

申请日：1993-05-17

申请人： Hiroyuki Kawashima ,  Fumio Ohtomo ,  Susumu Saito ,  Isao Minegishi

发明人： Hiroyuki Kawashima ,  Fumio Ohtomo ,  Susumu Saito ,  Isao Minegishi

IPC分类号： H01S5/068 ,  G01B9/02 ,  H01S3/13 ,  H01S5/0687

CPC分类号： H01S3/1303 ,  G01J9/0246 ,  H01S5/0687

摘要： A wavelength stabilizing light source apparatus comprising a light source, a beam splitter, a scanning mirror, a reflector, a first and a second light receiver, a phase detector and a wavelength stabilizer. The first light receiver receives a first interference signal formed from the interference between the coherent light coming from the scanning mirror and coherent light reflected by the first reflecting surface. The second light receiver receives a second interference signal formed from the interference between the coherent light coming from the scanning mirror and the coherent light reflected by the second reflecting surface. The phase detector detects the difference in phase between the first and the second interference signal. The wavelength stabilizer stabilizes the wavelength of the light source by keeping constant the phase difference detected by the phase detector. The apparatus also includes an optical path length difference forming device for keeping a constant difference in length between the first optical path of its first member and the second optical path of its second member despite changes in temperature.

摘要翻译： 一种波长稳定光源装置，包括光源，分束器，扫描镜，反射器，第一和第二光接收器，相位检测器和波长稳定器。 第一光接收器接收由来自扫描反射镜的相干光和由第一反射表面反射的相干光之间的干涉形成的第一干涉信号。 第二光接收器接收由来自扫描反射镜的相干光与由第二反射面反射的相干光之间的干涉而形成的第二干涉信号。 相位检测器检测第一和第二干涉信号之间的相位差。 波长稳定器通过将相位检测器检测到的相位差保持恒定来稳定光源的波长。 该装置还包括光路长度差形成装置，尽管温度有变化，但仍保持其第一构件的第一光路与其第二构件的第二光路之间的长度上的恒定差。

公开(公告)号：US5600442A

公开(公告)日：1997-02-04

申请号：US365240

申请日：1994-12-28

申请人： Isao Minegishi ,  Hiroyuki Kawashima ,  Susumu Saito

发明人： Isao Minegishi ,  Hiroyuki Kawashima ,  Susumu Saito

IPC分类号： G01B11/00 ,  G01B9/02 ,  G01D5/26

CPC分类号： G01D5/266

摘要： A position detecting apparatus comprises a light emitter which activates a laser source to emit a light beam so that mode hopping occurs, an interference optical system which directs the light beam from the laser source to a measuring light path on which an object to be measured is located and a reference light path on which a reflection mirror is placed and merges the reflected light beams coming back on the light paths so that the reflected light beams interfere with each other, a light sensor which receives the interference light beam provided by the interference optical system, and a position detector which determines the position of the object of measurement based on the interference signals produced by the light sensor before and after mode hopping caused by the light emitter.

摘要翻译： 位置检测装置包括：发光体激活激光源发射光束以发生模式跳跃;干涉光学系统，其将来自激光源的光束引导到待测对象的测量光路; 位于其上并配置有反射镜的参考光路，并且将反射回到光路上的反射光合流，使得反射光束彼此干涉;光传感器，其接收由干涉光学器件提供的干涉光束 系统和位置检测器，其基于由光发射器引起的模式跳变之前和之后由光传感器产生的干扰信号来确定测量对象的位置。

公开(公告)号：US5141302A

公开(公告)日：1992-08-25

申请号：US708133

申请日：1991-05-30

申请人： Akihiro Arai ,  Hideki Hatanaka ,  Akihiko Sekine ,  Isao Minegishi ,  Fumio Ohtomo

发明人： Akihiro Arai ,  Hideki Hatanaka ,  Akihiko Sekine ,  Isao Minegishi ,  Fumio Ohtomo

IPC分类号： G01B9/02 ,  A61B3/10 ,  G01B11/02

CPC分类号： G01B11/02 ,  A61B3/1005

摘要： An intraocular length measuring instrument including a light source having a short coherent length, a beam splitter for forming a measuring optical path across the interior of an eye to be tested and a reference optical path within the instrument, and guiding a beam of light from the light source to both the measuring optical path and the reference optical path, a first light receiving portion for interfering light reflected by an intraocular object to be measured after passing along the measuring optical path with light coming through the reference optical path and receiving a resultant interference light, an intraocular object position measuring portion for finding an optical path difference from an optical path length of the reference optical path and a peak position of a signal coming from the first light receiving portion, a light irradiating optical system for irradiating a light beam to the cornea of the eye to be tested, a light receiving optical system for introducing a reflected light from the cornea to a second light receiving portion, and a corneal position measuring portion for fining a position of the cornea from an output of the second light receiving portion.

摘要翻译： 一种眼内长度测量仪器，其包括具有短相干长度的光源，用于形成穿过待测眼睛内部的测量光路的分束器和仪器内的参考光路，以及引导来自 光源到测量光路和参考光路;第一光接收部分，用于在通过参考光路的光通过测量光路之后，干涉由待测量的眼内物体反射的光，并接收所得到的干扰 光，用于找到与参考光路的光路长度的光程差的眼内物体位置测量部分和来自第一光接收部分的信号的峰值位置，用于照射光束的光照射光学系统 要测试的眼睛的角膜，用于引入反射的光接收光学系统 从角膜到第二光接收部分的光，以及用于从第二光接收部分的输出对角膜的位置进行澄清的角膜位置测量部分。

公开(公告)号：US5107106A

公开(公告)日：1992-04-21

申请号：US454196

申请日：1989-12-21

申请人： Isao Minegishi ,  Masaru Isono ,  Fumio Ohtomo ,  Akihiko Sekine

发明人： Isao Minegishi ,  Masaru Isono ,  Fumio Ohtomo ,  Akihiko Sekine

IPC分类号： G01M11/00 ,  G02B26/10 ,  G02B26/12

CPC分类号： G02B26/127

摘要： A scanning optical device having a light source for illuminating an examination object such as eyground of a humaneye, a scanning illumination system for scanning and illuminating the examination object with the light, and a light receiving system for guiding the light reflected from the examination object to a light-receiving section. The scanning optical device also has a synchronous signal generating optical system capable of directly guiding the light from the scanning illumination system to the light-receiving section without the intermediary of the examination object, and a synchronizing signal extraction device for separating a synchronizing signal exactly synchronous with the image signal from the signal derived from the light-receiving section.

公开(公告)号：US20050207037A1

公开(公告)日：2005-09-22

申请号：US11049286

申请日：2005-02-03

申请人： Isao Minegishi

发明人： Isao Minegishi

IPC分类号： A61B3/103 ,  G02B5/08 ,  G02B26/08

CPC分类号： A61B3/103 ,  G02B26/0825

摘要： A deformable mirror control device is provided with improved response characteristic by devising the mode of control even if the deformable mirror has a large time constant in comparison with the response speed required in applications such as the retinal camera. The deformable mirror device comprises a deformable mirror 10 having a reflective surface deformed with an applied voltage, and a voltage control circuit 20 for controlling the voltage applied to the deformable mirror 10. Here, the voltage control circuit 20 produces a steady-state voltage at which the reflective surface of the deformable mirror 10 takes an intended shape in a steady state, and produces a transient voltage that causes the reflective surface of the deformable mirror 10 to deform toward the intended shape, and also produces a transient voltage that causes the shape of the reflective surface of the deformable mirror 10 to shift quickly toward the intended shape.

摘要翻译： 可变形反射镜控制装置通过设计控制模式而具有改进的响应特性，即使可变形反射镜与诸如视网膜相机的应用中所需的响应速度相比具有大的时间常数。 可变形反射镜装置包括具有被施加电压变形的反射表面的可变形反射镜10和用于控制施加到可变形反射镜10的电压的电压控制电路20.这里，电压控制电路20产生稳态电压 其中可变形反射镜10的反射表面处于稳定状态的预期形状，并且产生使可变形反射镜10的反射表面朝向期望的形状变形的瞬态电压，并且还产生瞬态电压，其使形状 的可变形反射镜10的反射表面快速移向预期的形状。

公开(公告)号：US07387394B2

公开(公告)日：2008-06-17

申请号：US11049286

申请日：2005-02-03

申请人： Isao Minegishi

发明人： Isao Minegishi

IPC分类号： G02B5/08

CPC分类号： A61B3/103 ,  G02B26/0825

摘要： A deformable mirror control device is provided with improved response characteristic by devising the mode of control even if the deformable mirror has a large time constant in comparison with the response speed required in applications such as the retinal camera. The deformable mirror device comprises a deformable mirror 10 having a reflective surface deformed with an applied voltage, and a voltage control circuit 20 for controlling the voltage applied to the deformable mirror 10. Here, the voltage control circuit 20 produces a steady-state voltage at which the reflective surface of the deformable mirror 10 takes an intended shape in a steady state, and produces a transient voltage that causes the reflective surface of the deformable mirror 10 to deform toward the intended shape, and also produces a transient voltage that causes the shape of the reflective surface of the deformable mirror 10 to shift quickly toward the intended shape.

摘要翻译： 可变形反射镜控制装置通过设计控制模式而具有改进的响应特性，即使可变形反射镜与诸如视网膜相机的应用中所需的响应速度相比具有大的时间常数。 可变形反射镜装置包括具有被施加电压变形的反射表面的可变形反射镜10和用于控制施加到可变形反射镜10的电压的电压控制电路20.这里，电压控制电路20产生稳态电压 其中可变形反射镜10的反射表面处于稳定状态的预期形状，并且产生使可变形反射镜10的反射表面朝向期望的形状变形的瞬态电压，并且还产生瞬态电压，其使形状 的可变形反射镜10的反射表面快速移向预期的形状。

公开(公告)号：US20080068585A1

公开(公告)日：2008-03-20

申请号：US11901829

申请日：2007-09-19

申请人： Kenichiro Yoshino ,  Isao Minegishi

发明人： Kenichiro Yoshino ,  Isao Minegishi

IPC分类号： G01C3/08

CPC分类号： G01S17/10 ,  G01S7/4861 ,  G01S7/4868 ,  G01S7/487

摘要： A pulse light receiving time measurement apparatus according to the present invention includes a light receiving element receiving reflected pulse light from an object to be measured; a pulse light receiving time measurement circuit measuring a time when pulse light is irradiated to the object and a time when the reflected pulse light from the object is received at the light receiving element; a resonance circuit converting an optical pulse signal of the reflected pulse light from the light receiving element into a damping signal; a multi-stage amplifier group amplifying the damping signal from the resonance circuit; a damping signal processing circuit composed of amplitude comparators and zero-cross comparators, and processing the damping signal from each stage of the multi-stage amplifier group, in which operations of the respective zero-cross comparators are determined according to comparison results of the respective amplitude comparators for the amplifier group.

摘要翻译： 根据本发明的脉冲光接收时间测量装置包括：光接收元件，其接收来自待测物体的反射脉冲光; 测量脉冲光照射到物体上的时间的脉冲光接收时间测量电路和在受光元件处接收到来自物体的反射脉冲光的时间; 将来自光接收元件的反射脉冲光的光脉冲信号转换成阻尼信号的谐振电路; 放大来自谐振电路的阻尼信号的多级放大器组; 由幅度比较器和零交叉比较器组成的阻尼信号处理电路，以及处理来自多级放大器组的每一级的衰减信号，其中根据相应的零级比较器的比较结果确定各个零交叉比较器的操作 放大器组的幅度比较器。

公开(公告)号：US3969161A

公开(公告)日：1976-07-13

申请号：US441225

申请日：1974-02-11

申请人： Tohru Mimino ,  Kazuhisa Kinoshita ,  Takayuki Shinoda ,  Isao Minegishi

发明人： Tohru Mimino ,  Kazuhisa Kinoshita ,  Takayuki Shinoda ,  Isao Minegishi

IPC分类号： C22C38/48 ,  C22C38/50

CPC分类号： C22C38/50 ,  C22C38/48

摘要： Cr-Ni system austenitic heat-resisting steel exhibiting higher heat resistance than that of well-known austenitic stainless steels by means of which an atomic ratio of C being 0.05 to 0.30% to Ti being 0.01 to 0.8% and/or Nb (Ta) being 0.01 to 1.6% is within the range of 1.3 to 7, preferably 3 to 6 and the grain size is within the range of ASTM No. 3 to 8.

摘要翻译： 与公知的奥氏体不锈钢相比，显示出比Ti为0.05〜0.30％的原子比为0.01〜0.8％和/或Nb（Ta）的Cr-Ni系奥氏体耐热钢， 为0.01〜1.6％，在1.3〜7的范围内，优选为3〜6，粒径为3〜8的范围。